abstract

The development and fabrication of reliable high temperature-high strength silicon nitride components by Garrett Ceramic Components Division for the Advanced Turbine Technology Applications Project (ATTAP) is discussed. Garrett Ceramic Components’ advanced turbine component process development philosophy and practices will be presented, including implementation of statistically designed experiments, in-process controls, extensive NDE, and mechanical properties characterization. The current status of material, process, and part properties of specific components being developed by Garrett Ceramic Components are compared with the properties required for their implementation and the successful operation of advanced gas turbines with ceramic components at 1370°C.

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